. The fungi which cause plant disease . Plant diseases; Fungi. 360 THE FUNGI WHICH CAUSE PLANT DISEASE G. interstitialis (Schl.) Lag.^^-^*- ^^ O. Pycnia glandular, numerous mostly epiphyllous. I (=Caeoma nitens), hypophyllous, son irregular, confluent; spores orange-red, globose to elliptic, epispore thin, 18^35 x 12-24. III. Telia hypophyllous, few, sparse, cinnamon-brown; spores more or less angular, 36-45 x 22-27 fi, pedicel short or wanting. AutCEcious, on raspberries and blackberries, wild and cultivated, in United States, Canada, Europe and Asia. The pycnial stage appears first in spring
. The fungi which cause plant disease . Plant diseases; Fungi. 360 THE FUNGI WHICH CAUSE PLANT DISEASE G. interstitialis (Schl.) Lag.^^-^*- ^^ O. Pycnia glandular, numerous mostly epiphyllous. I (=Caeoma nitens), hypophyllous, son irregular, confluent; spores orange-red, globose to elliptic, epispore thin, 18^35 x 12-24. III. Telia hypophyllous, few, sparse, cinnamon-brown; spores more or less angular, 36-45 x 22-27 fi, pedicel short or wanting. AutCEcious, on raspberries and blackberries, wild and cultivated, in United States, Canada, Europe and Asia. The pycnial stage appears first in spring giving to the leaves and stems a glandular appearance. About two or three weeks. Fig. 262.—G. interstitialis, cseoma sorus. After Newcomb. later the aicial stage is visible on the lower surface of the leaves; the epidermis soon ruptures and the orange beds of spores show. The pycnia are then fully developed. The affected plants are much stunted and are unproductive but are not killed. The fungous mycelimn is intercellular, growing rapidly into formative tissues and perennating "' in the woody shoots. The knob-like haustoria penetrate the cells and often lie against the nuclei. The mycehum is especially abimdant in the pith near the bundles. The seciospores may germinate at once and infect susceptible hosts. The teliospore which is less conspicuous and therefore rarely seen is of the Puccinia type. The telia appear in July. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
